Description and comments refined

Author: luav

README.md

@@ -60,7 +60,6 @@ Large executing jobs can be postponed for the later execution with less number o
 
 Demo of the *scheduling with memory constraints* for the worker processes:
 ![mpepool_memory](images/mpepool_mem.png)
-> Zombie processes still may appear on abnormal termination of worker processes during rescheduling due to some bug in the Python interpreter. Anyway all resources are clearer up and the zombies disappear on the execution pool completion.
 
 Demo of the *scheduling with cache L1 maximization* for single-threaded processes on the server with cross-node CPUs enumeration. Whole physical CPU core consisting of two hardware threads assigned to each worker process, so the L1 cache is dedicated (not shared), but the maximal loading over all CPUs is 50%:
 ![mpepool_cacheL1_1](images/mpepool_cacheL1_1.png)

mpepool.py

@@ -2227,7 +2227,7 @@ def __start(self, job, concur=True):
 				# Kill non-terminated process
 				if active:
 					if job.proc.poll() is None:
-						print('  Killing ~zombie "{}" #{} ...'.format(job.name, job.proc.pid), file=sys.stderr)
+						print('  Killing ~hanged "{}" #{} ...'.format(job.name, job.proc.pid), file=sys.stderr)
 						job.proc.kill()
 			self.__complete(job, False)
 			# ATTENTION: re-raise exception for the BaseException but not Exception sub-classes
@@ -2523,7 +2523,6 @@ def __reviseWorkers(self):
 			memall = self.memlimit + memov  # Note: memov is negative here
 
 		# Process completed (and terminated) jobs: execute callbacks and remove the workers
-		#cterminated = False  # Completed terminated procs processed
 		for job in completed:
 			# Note: check for the termination in all cycles
 			if not self.alive:
@@ -2533,7 +2532,6 @@ def __reviseWorkers(self):
 			exectime = job.tstop - job.tstart
 			# Restart the job if it was terminated and should be restarted
 			if not job.terminates:
-				#cterminated = True
 				continue
 			print('WARNING, "{}" #{} is terminated because of the {} violation'
 				', chtermtime: {}, consumes {:.4f} / {:.4f} GB, timeout {:.4f} sec, executed: {:.4f} sec ({} h {} m {:.4f} s)'
@@ -2575,7 +2573,8 @@ def __reviseWorkers(self):
 				self.__postpone(job, True)
 		# Note: the number of workers is not reduced to less than 1
 
-		# Note: active_children() does not impact on the existence of zombie procs
+		# Note: active_children() does not impact on the existence of zombie procs,
+		# proc table clearup implemented in complete() using wait()
 		#if cterminated:
 		#	# Note: required to join terminated child procs and avoid zombies
 		#	# Return list of all live children of the current process,joining any processes which have already finished

setup.py

@@ -17,7 +17,6 @@
 
 setup(
 	name=pkgname,  # This is the name of your PyPI-package.
-	# version='2.2.0',  # Update the version number for new releases
 	version='3.1.0',  # Update the version number for new releases
 	description=('A lightweight multi-process Execution Pool with load balancing'
 	' and customizable resource consumption constraints.'),  # Required, "Summary" metadata field